Agreed, its hard for any NHL team to walk away from a 100 point player for nothing, and claiming its in the best interest of the team.
However in Toronto's case they have a valid argument because its gets weighed against player greed and contract demands that destroys any reasonable player comparable contracts, suggesting walking away the SMART choice,
When your contract demands place you ahead the TOP 5 Playoff goal and point scorers in the NHL past 5 years in McDavid, Draisaitl, Rantanen, Kucherov and MacKinnon.